Lets see. Did it shake after the rear spax conversion? After the front went
in? After the new tires and wheels went on? Did you change a bunch of stuff
all at the same time? Oops, that makes a diagnosis much harder. Who did the
spax conversion? are you sure everything went in right? What about A-arm
bushings? Did you put the spax in because your front shocks were completely
shot? The front shock is still in there now isn't it? How are the shock
arms? Mine were all sloppy before I put in rebuilt shocks, and the rebuilts
got rid of a lot of shake. It isn't functioning as a shock anymore but it
is still the upper link of your front suspension. If it's worn out you need
to replace it. I also think that with these conversions, you leave the oil
in the shock, but remove the valve. I guess a leaky one might be a problem
too then.
just some thoughts
Phil Vanner
'61 Midget
Thrumming along nicely, thank you.
-----Original Message-----
From: Jason Dutt [SMTP:jason@markerman.com]
Sent: Thursday, April 15, 1999 12:31 PM
To: MG List
Cc: Jason F Dutt
Subject: More Shaking Cars
Hello, denziens of the list. Recently we saw a thread regarding a car with
the shakes. My symptoms are a bit different, so I thought I'd seek further
insight.
Before I get in to the problem, let me create a scenario. The front and
rear suspension on my 72 MGB have been completely rebuilt using a SPAX
conversion on both ends. I have new Minilite Repro wheels with new tires
that have been recently balanced on the dyno thingy the tire place uses.
When the following symptoms first came up, I took the car back to the
specialist who did all the aforementioned work. After checking for any
goof-ups, and finding none, he suspected the drive shaft. Indeed, the
bushings in the universal joint were shot, so he replaced them. This
improved the situation, but the symptoms do still persist.
So, with all that said, here's what's up. At about 60-65 MPH, and
intermittent shake will appear, usually in the steering wheel. This shake
will get worse as I accelerate, up to 75-80 MPH. Past 80 MPH, the shake
all
but disappears, but I'm guessing it's just because the harmonics are just
so
fast that I can't distinguish them anymore. Here's the weird part: The
shake will move from the front to the rear of the car, then back again. In
other words, it's not always in the front, or always in the back. It
migrates. Sometimes, it doesn't shake at all.
If you need any further info, please let me know, but I think this is all
that's pertinent.
Thanks in advance,
=J=
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